What does a dream mean when you get chased by a killer and have knifes thrown at you?

I had a dream last night that a guy in a shaggy beard was chasing me and throwing at me a type of boomerang that was actually a knife. I remember running through a white room and seeing corpses of people and blood spattered on the white walls. I ducked and the boomerang missed me and i hid in an inflatable sofa. Then the dream changed into a flea market. I was with my mom, my dad, and my godparents. I remember looking at really old diamond jewelry. At that moment my alarm rang and I woke but I am really creeped out by it. HELP!